diff options
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv8/Kconfig | 7 | ||||
| -rw-r--r-- | arch/arm/cpu/armv8/psci.S | 26 |
2 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/Kconfig b/arch/arm/cpu/armv8/Kconfig index c8bebabdf6..ff42791fb4 100644 --- a/arch/arm/cpu/armv8/Kconfig +++ b/arch/arm/cpu/armv8/Kconfig @@ -144,6 +144,13 @@ config ARMV8_PSCI_CPUS_PER_CLUSTER A value 0 or no definition of it works for single cluster system. System with multi-cluster should difine their own exact value. +config ARMV8_EA_EL3_FIRST + bool "External aborts and SError interrupt exception are taken in EL3" + default n + help + Exception handling at all exception levels for External Abort and + SError interrupt exception are taken in EL3. + if SYS_HAS_ARMV8_SECURE_BASE config ARMV8_SECURE_BASE diff --git a/arch/arm/cpu/armv8/psci.S b/arch/arm/cpu/armv8/psci.S index 097f91bace..358df8fee9 100644 --- a/arch/arm/cpu/armv8/psci.S +++ b/arch/arm/cpu/armv8/psci.S @@ -236,6 +236,28 @@ handle_sync: b unhandled_exception +#ifdef CONFIG_ARMV8_EA_EL3_FIRST +/* + * Override this function if custom error handling is + * needed for asynchronous aborts + */ +ENTRY(plat_error_handler) + ret +ENDPROC(plat_error_handler) +.weak plat_error_handler + +handle_error: + bl psci_get_cpu_id + bl psci_get_cpu_stack_top + mov x9, #1 + msr spsel, x9 + mov sp, x0 + + bl plat_error_handler /* Platform specific error handling */ +deadloop: + b deadloop /* Never return */ +#endif + .align 11 .globl el3_exception_vectors el3_exception_vectors: @@ -261,7 +283,11 @@ el3_exception_vectors: .align 7 b unhandled_exception /* FIQ, Lower EL using AArch64 */ .align 7 +#ifdef CONFIG_ARMV8_EA_EL3_FIRST + b handle_error /* SError, Lower EL using AArch64 */ +#else b unhandled_exception /* SError, Lower EL using AArch64 */ +#endif .align 7 b unhandled_exception /* Sync, Lower EL using AArch32 */ .align 7 |